ST Turbo+ mPSD DK3400, User Manual, Page: 10 / 24

Running the demo project UM0299
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3.3 Debugging
1. Click the "Go" icon in the menu bar to run the program.
The program runs full speed with the D6 red LED (middle LED in the bank of 3 red
ones) blinking at a couple HZ frequency.
2. Click the "Reset" icon to restart execution at the first line of the main program.
The blue line should be on blink_delay = SHORT.
3. Click the "Step-In" icon twice.
The debugger is now in the called function,
timer0_init()
.
4. Double click " Disassembly Code" in the left debugger window.
This opens a display named "Disassembly code (led_blink)" showing both C and
Assembly code source instructions.
5. Click the "Step-Over" icon a few times to see that code execution can be stepped one
assembly instruction at a time.
6. Click "Reset" to return to the main program,
led_blink.c.
7. Click on the LED_BLINK.C tab the Code/ Edit/Trace window to return to the C code
window.
3.4 Changing the display of information
1. Double-click the "Main Registers" icon in the left debugger window.
The contents of the MCU core registers is displayed (see Figure 4 ).